SEATTLE AIR ROUTE TRAFFIC CONTROL CENTER SEATTLE GLIDER COUNCIL LETTER OF AGREEMENT EFFECTIVE: June 1, 2015 SUBJECT: GLIDER OPERATIONS WITHIN CLASS A AIRSPACE 1. PURPOSE. This Letter of Agreement establishes areas and procedures for glider operations within Class A Airspace under jurisdiction of the Seattle Air Route Traffic Control Center (ARTCC). 2. DISTRIBUTION. Appropriate Seattle Center personnel, Seattle Glider Council, Columbia Basin Soaring Association and the Northwest Mountain Region Air Traffic Division. 3. CANCELLATION. Seattle ARTCC, Seattle Glider Council and Columbia Basin Soaring Association Letter of Agreement, same subject, dated April 9, 2003. 4. SCOPE. The areas and procedures specified herein are for the conduct of VFR operations in Class A Airspace by members of the Seattle Glider Council and the Columbia Basin Soaring Association. 5. RESPONSIBILITIES. a. Upon request by members of the Seattle Glider Council and the Columbia Basin Soaring Association, Seattle ARTCC authorizes deviation from FAR 91-135 in specified areas (see attached charts) under the provisions of this Letter of Agreement. Seattle ARTCC must retain the authority to withdraw the provisions of this agreement at any time. b. The Seattle Glider Council and the Columbia Basin Soaring Association must assure that all pilots utilizing these procedures are familiar with and comply with this Letter of Agreement. c. Authorization may be delegated by the Seattle Glider Council and/or the Columbia Basin Soaring Association to pilots not under their jurisdiction, provided a signed statement is obtained from each such pilot stating they accept and will comply with all conditions of this Letter of Agreement. d. Flight must be conducted in accordance with the basic VFR distance from clouds and flight visibility minimums specified in FAR 91.155. e. Visual reference to the ground must be maintained at all times. Gliders must remain within the lateral boundaries of the assigned airspace (coordinates are depicted on attached charts). 6. COORDINATION. a. The Seattle Glider Council must maintain a current list of Council Board of Directors at www.seattleglidercouncil.org. If this method of notification changes for any reason, Seattle Glider Council will advise Seattle ARTCC of the changes as soon as possible, and the two parties must come up with an acceptable alternative. b. The requested times of use must be coordinated with the Seattle Center Mission Coordinator (MC) at 253-351-3523 at least one hour prior to entry. Included with this request must be a contact phone number for the person responsible for requesting the airspace. This individual must have the ability to contact the pilot in a timely fashion. (Weekly schedules may be coordinated.) Area #3 is subdivided into Parts A and B. The actual usage of Part B will be authorized by the sector controller and is contingent upon the status of R6714B. Prior to operating within an established glider area, the pilot who initially requests entry into the area must obtain approval from the appropriate Seattle Center sector and provide the following information: (1) Glider identification. (2) Air/ground communications and transponder capabilities, if any. (3) The pilot or his designee must remain on frequency unless otherwise coordinated. (4) Estimated entry time and duration of flight within the glider area. (5) Altitudes requested in the area. Note: Appropriate frequencies are listed on the attached charts.
Seattle ARTCC, Seattle Glider Council LOA Attachment 1 Sector 31 (127.05) Low Altitude Sectors FL180 to 239 FL180-230 121 55 Sector 1 (120.3) 121 34 47 17 47 06 120 27 47 18 120 26 47 13 30 47 01 Sector 18 surface to 239 121 51 Sector 32 121 36 120 59 120 57 Sector 9 surface to 239 46 24 119 53 119 55 119 43 46 26
High Altitude Sectors FL240 and Above Seattle ARTCC, Seattle Glider Council LOA Attachment 2 Sector 31 (127.05) FL180-230 121 55 Sector 1 (120.3) 121 34 47 17 47 06 120 27 47 18 120 26 47 13 30 47 01 Sector 7 (128.45) 121 51 Sector 32 121 36 120 59 120 57 119 53 46 24 119 55 119 43 Sector 47 (118.55) 46 26